Summary of M-SCAN
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3. Get started 4. Features 5. Controls 6. How the m-scan works basic operation and description 7. Batteries 8. Preparation 8. Sensitivity 9. Volume 9. Audio indication 10. Visual indication 10. North/south polarity 10. Depth 10. Pinpointing 11. Power line indicator 11. Erase 11. Submersion in water ...
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3 brief instructions for use 1. Insert batteries in the holder ensuring they are in the correct orientation before re-inserting the holder so the contacts touch. 2. Remove any metal items (rings, watches, etc) and electronic devices (e.G. Mobile phones) from about your person. 3. Turn the m-scan on ...
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4 features the c.Scope m-scan magnetic locator is a flux-gate magnetometer. It responds when it detects ferromagnetic material (material that is able to be magnetised, such as iron) by increasing the audio frequency to a higher pitch as the object is approached and passed. It is not affected by othe...
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5 1. Power on/off 2. Volume up/down 3. Sensitivity up/down 4. Erase button 5. Bar graph 6. Sensitivity indicator 7. Volume indicator 8. Digital signal indicator 9. Power line warning 10. Battery indicator 11. Flange symbol refer to application note 2 (page 13) m-scan 5 9 2 1 4 10 8 7 6 3 11 controls.
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6 the m-scan finds ferromagnetic objects by sensing the magnetic field radiated by the object. The locator contains two sensor coil assemblies that are spaced apart and their outputs electronically finely balanced. This is done so that the m-scan can correct for the ever-present magnetic field on th...
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Basic operation and description 7 batteries the battery compartment is located on the underside of the m-scan. Use a coin to rotate the latch anti clockwise 90° to undo. Remove the battery holder and fit eight aa alkaline batteries in the holder before repositioning in the compartment. Take care to ...
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8 basic operation and description m-scan preparation remove any metallic object such as a wrist watch, bracelets or large buckles and keep the sensor tube away from footwear to prevent false signals as these items may contain magnetic material. Mobile phones, some headphones and other electronic pro...
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9 volume the volume can be adjusted using the volume and volume v buttons. There are eight possible volume settings, v1 is the quietest and v8 is the loudest. The display will momentarily indicate the new setting (eg v5) in the bottom centre. Audio indication when no ferrous metal is present, the so...
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10 visual indication when no ferromagnetic material is close, the m-scan display will show a very low field strength reading in µh and the analogue bar graph will be at 0 or very low. When nearing ferromagnetic material the field strength will increase up to a maximum reading of 99.9uh. The analogue...
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11 basic operation and description power line indicator the electromagnetic fields radiated and detected by the m-scan from 50 or 60 hz power lines are indicated by the triangular warning sign in the bottom left of the display. The end of sensor tube needs to be close to conductors exhibiting mains ...
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12 application note 1. Understanding the m-scan magnetometer the c-scope m-scan magnetometer is designed to detect the presence of iron and steel objects by sensing the magnetic field which surrounds them. The earth’s magnetic field is ever present, and the instrument cancels this background field o...
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13 the mineralogy of the surrounding rock may also cause local variations – even the complete reversal of the field in some rare cases. A representation of the earth’s magnetic field is shown in figure 1. Note that magnetic north is a few degrees away from true north and that the magnetic north pole...
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14 application note 2. How objects appear to a magnetometer iron objects tend to concentrate the magnetic field lines around them distorting the earth’s field. The magnetic field produced by an iron object will tend to follow the same orientation as the earth’s field, and, if the object is moved, it...
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15 iron and steel act differently. Steel objects may take on a permanent magnetism, which may not line up with the earth’s field, and may be much stronger in intensity. Magnetic survey pins, for example, can be found at a distance of several yards/ metres. A buried steel rod, orientated vertically m...
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16 application note 3. Depth it is sometimes possible to judge the depth of an object by the “shape” of the response. Small, shallowly buried objects may produce the same strength of signal as a larger, more deeply buried object, but the deep object will produce a broad peak, while small shallow obj...
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17 a feature of the m-scan is the ‘erase’ button. The instrument is balanced during manufacture to produce a response close to zero in earth’s field. In some cases it is useful to offset this field towards the north or south to compensate for a large magnetised or magnetisable object such as chain l...
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18 application note 5. Finding the centre of a target the sensors in the m-scan are orientated along the axis of the tube. When the tube is placed at right-angles to a magnetic field (figure 7 a) no field will be detected. When the magnetic lines of flux are parallel to the tube (figure 7 b) the str...
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A single magnetic marker pin that is close to the surface can appear to have multiple peaks as the m-scan is traversed across it. In figure 8 there are two smaller, but detectable, side lobes (a) either side of a central main peak (c) when using the m-scan vertically to find a magnetised marker pin....
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C.Scope international ltd kingsnorth technology park wotton road ashford kent tn23 6ln tel: +44 (0) 1233 629181 fax: +44 (0) 1233 645897 info@cscope.Co.Uk www.Cscopelocators.Com copyright © 2015 c.Scope international ltd. All rights reserved. C.Scope has a policy of continuous product development an...